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- ------------------------------------------------------------------------
- -- dqLogB.decTest -- integral 754r adjusted exponent, for decQuads --
- -- Copyright (c) IBM Corporation, 2005, 2008. All rights reserved. --
- ------------------------------------------------------------------------
- -- Please see the document "General Decimal Arithmetic Testcases" --
- -- at http://www2.hursley.ibm.com/decimal for the description of --
- -- these testcases. --
- -- --
- -- These testcases are experimental ('beta' versions), and they --
- -- may contain errors. They are offered on an as-is basis. In --
- -- particular, achieving the same results as the tests here is not --
- -- a guarantee that an implementation complies with any Standard --
- -- or specification. The tests are not exhaustive. --
- -- --
- -- Please send comments, suggestions, and corrections to the author: --
- -- Mike Cowlishaw, IBM Fellow --
- -- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --
- -- mfc@uk.ibm.com --
- ------------------------------------------------------------------------
- version: 2.59
- extended: 1
- clamp: 1
- precision: 34
- maxExponent: 6144
- minExponent: -6143
- rounding: half_even
- -- basics
- dqlogb000 logb 0 -> -Infinity Division_by_zero
- dqlogb001 logb 1E-6176 -> -6176
- dqlogb002 logb 1E-6143 -> -6143
- dqlogb003 logb 0.001 -> -3
- dqlogb004 logb 0.03 -> -2
- dqlogb005 logb 1 -> 0
- dqlogb006 logb 2 -> 0
- dqlogb007 logb 2.5 -> 0
- dqlogb008 logb 2.50 -> 0
- dqlogb009 logb 2.500 -> 0
- dqlogb010 logb 10 -> 1
- dqlogb011 logb 70 -> 1
- dqlogb012 logb 100 -> 2
- dqlogb013 logb 250 -> 2
- dqlogb014 logb 9E+6144 -> 6144
- dqlogb015 logb +Infinity -> Infinity
- -- negatives appear to be treated as positives
- dqlogb021 logb -0 -> -Infinity Division_by_zero
- dqlogb022 logb -1E-6176 -> -6176
- dqlogb023 logb -9E-6143 -> -6143
- dqlogb024 logb -0.001 -> -3
- dqlogb025 logb -1 -> 0
- dqlogb026 logb -2 -> 0
- dqlogb027 logb -10 -> 1
- dqlogb028 logb -70 -> 1
- dqlogb029 logb -100 -> 2
- dqlogb030 logb -9E+6144 -> 6144
- dqlogb031 logb -Infinity -> Infinity
- -- zeros
- dqlogb111 logb 0 -> -Infinity Division_by_zero
- dqlogb112 logb -0 -> -Infinity Division_by_zero
- dqlogb113 logb 0E+4 -> -Infinity Division_by_zero
- dqlogb114 logb -0E+4 -> -Infinity Division_by_zero
- dqlogb115 logb 0.0000 -> -Infinity Division_by_zero
- dqlogb116 logb -0.0000 -> -Infinity Division_by_zero
- dqlogb117 logb 0E-141 -> -Infinity Division_by_zero
- dqlogb118 logb -0E-141 -> -Infinity Division_by_zero
- -- full coefficients, alternating bits
- dqlogb121 logb 268268268 -> 8
- dqlogb122 logb -268268268 -> 8
- dqlogb123 logb 134134134 -> 8
- dqlogb124 logb -134134134 -> 8
- -- Nmax, Nmin, Ntiny
- dqlogb131 logb 9.999999999999999999999999999999999E+6144 -> 6144
- dqlogb132 logb 1E-6143 -> -6143
- dqlogb133 logb 1.000000000000000000000000000000000E-6143 -> -6143
- dqlogb134 logb 1E-6176 -> -6176
- dqlogb135 logb -1E-6176 -> -6176
- dqlogb136 logb -1.000000000000000000000000000000000E-6143 -> -6143
- dqlogb137 logb -1E-6143 -> -6143
- dqlogb1614 logb -9.999999999999999999999999999999999E+6144 -> 6144
- -- ones
- dqlogb0061 logb 1 -> 0
- dqlogb0062 logb 1.0 -> 0
- dqlogb0063 logb 1.000000000000000 -> 0
- -- notable cases -- exact powers of 10
- dqlogb1100 logb 1 -> 0
- dqlogb1101 logb 10 -> 1
- dqlogb1102 logb 100 -> 2
- dqlogb1103 logb 1000 -> 3
- dqlogb1104 logb 10000 -> 4
- dqlogb1105 logb 100000 -> 5
- dqlogb1106 logb 1000000 -> 6
- dqlogb1107 logb 10000000 -> 7
- dqlogb1108 logb 100000000 -> 8
- dqlogb1109 logb 1000000000 -> 9
- dqlogb1110 logb 10000000000 -> 10
- dqlogb1111 logb 100000000000 -> 11
- dqlogb1112 logb 1000000000000 -> 12
- dqlogb1113 logb 0.00000000001 -> -11
- dqlogb1114 logb 0.0000000001 -> -10
- dqlogb1115 logb 0.000000001 -> -9
- dqlogb1116 logb 0.00000001 -> -8
- dqlogb1117 logb 0.0000001 -> -7
- dqlogb1118 logb 0.000001 -> -6
- dqlogb1119 logb 0.00001 -> -5
- dqlogb1120 logb 0.0001 -> -4
- dqlogb1121 logb 0.001 -> -3
- dqlogb1122 logb 0.01 -> -2
- dqlogb1123 logb 0.1 -> -1
- dqlogb1124 logb 1E-99 -> -99
- dqlogb1125 logb 1E-100 -> -100
- dqlogb1127 logb 1E-299 -> -299
- dqlogb1126 logb 1E-6143 -> -6143
- -- suggestions from Ilan Nehama
- dqlogb1400 logb 10E-3 -> -2
- dqlogb1401 logb 10E-2 -> -1
- dqlogb1402 logb 100E-2 -> 0
- dqlogb1403 logb 1000E-2 -> 1
- dqlogb1404 logb 10000E-2 -> 2
- dqlogb1405 logb 10E-1 -> 0
- dqlogb1406 logb 100E-1 -> 1
- dqlogb1407 logb 1000E-1 -> 2
- dqlogb1408 logb 10000E-1 -> 3
- dqlogb1409 logb 10E0 -> 1
- dqlogb1410 logb 100E0 -> 2
- dqlogb1411 logb 1000E0 -> 3
- dqlogb1412 logb 10000E0 -> 4
- dqlogb1413 logb 10E1 -> 2
- dqlogb1414 logb 100E1 -> 3
- dqlogb1415 logb 1000E1 -> 4
- dqlogb1416 logb 10000E1 -> 5
- dqlogb1417 logb 10E2 -> 3
- dqlogb1418 logb 100E2 -> 4
- dqlogb1419 logb 1000E2 -> 5
- dqlogb1420 logb 10000E2 -> 6
- -- special values
- dqlogb820 logb Infinity -> Infinity
- dqlogb821 logb 0 -> -Infinity Division_by_zero
- dqlogb822 logb NaN -> NaN
- dqlogb823 logb sNaN -> NaN Invalid_operation
- -- propagating NaNs
- dqlogb824 logb sNaN123 -> NaN123 Invalid_operation
- dqlogb825 logb -sNaN321 -> -NaN321 Invalid_operation
- dqlogb826 logb NaN456 -> NaN456
- dqlogb827 logb -NaN654 -> -NaN654
- dqlogb828 logb NaN1 -> NaN1
- -- Null test
- dqlogb900 logb # -> NaN Invalid_operation
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